You are here

stored soil water

Categorised under:

Catalogue: GRDC Final Reports
Grain growers in 300-400mm Australian dryland farming systems lack a profitable oilseed broadleaf crop with stable yields that can be rotated with cereals (and field pea/chickpea)... Research is needed to address the comparative poor harvest index of B. juncea against canola ( Brassica napus) ... Suitable production zones have been successfully modelled using a median yield of 1.5t/ha (APSIM simulations), but model simulations should be redone for a long term median yield of 1.2t/ha...
Related categories:
Catalogue: GRDC Updates
Table 1 shows that when planting between October and the 1 st of January, there is an 80% chance of receiving at least 107-126 mm of in-crop rainfall this calculation does not consider the impact of rainfall timing on crop demand... I have used 100 mm as an average loss figure for a summer crop in this region... Figure 4 supports the back of the envelope calculation suggesting the 180mm of starting water is the minimum required to achieve a 3t yield 6 to 8 years in 10...
Related categories:
Catalogue: GRDC Factsheets
a realistic understanding of the soil's capacity to store water will improve decisions about the potential return on crop inputs and other management practices... improving water use efficiency may require effort over several years to improve the soil's ability to capture and store water, or to make stored water available to plants... Water use efficiency (WUE) is a measure of a crop's capacity to convert water into plant biomass or grain...
Related categories:
Catalogue: GRDC Factsheets
a realistic understanding of the soil's capacity to store water will improve decisions about the potential return on crop inputs and other management practices... improving water use efficiency may require effort over several years to improve the soil's ability to capture and store water, or to make stored water available to plants... Water use efficiency (WUE) is a measure of a crop's capacity to convert water into plant biomass or grain...
Related categories:
Catalogue: GRDC Factsheets
a realistic understanding of the soil's capacity to store water will improve decisions about the potential return on crop inputs and other management practices... improving water use efficiency may require effort over several years to improve the soil's ability to capture and store water, or to make stored water available to plants... Water use efficiency (WUE) is a measure of a crop's capacity to convert water into plant biomass or grain...
Related categories:
Catalogue: GRDC Updates
Water-use efficiency (WUE) of wheat grain production is simply the grain yield of a crop divided by the water used by that crop... The water-use of the crop can be calculated as water available at sowing (42 mm), minus water available at maturity (1 mm, close enough to 0 mm!.. The largest increase to yield and water-use efficiency was achieved by improved summer weed management (Scenario 3)...
Related categories:
Catalogue: GRDC Media
Research funded by the Grains Research and Development Corporation (GRDC) shows that early control of fallow weeds can lead to significant increases in the levels of stored plant-available water and increased availability of nutrients (especially nitrogen), benefiting crop yield and grain quality... Mr Cameron, who co-authored the GRDC's Summer Fallow Weed Management manual, said soil water saved by killing fallow weeds was often stored deep in the profile and its value is often far higher than that of in-crop rainfall... In the right soil, deep stored soil water can have a water use efficiency of up to 60 kilograms of grain/millimetre of stored water...
Related categories:
Catalogue: GRDC Media
Research funded by the Grains Research and Development Corporation (GRDC) shows that early control of fallow weeds can lead to significant increases in the levels of stored plant-available water and increased availability of nutrients (especially nitrogen), benefiting crop yield and grain quality... Mr Cameron, who co-authored the GRDC's Summer Fallow Weed Management manual, said soil water saved by killing fallow weeds was often stored deep in the profile and its value is often far higher than that of in-crop rainfall... In the right soil, deep stored soil water can have a water use efficiency of up to 60 kilograms of grain/millimetre of stored water...
Related categories:
Catalogue: GRDC Updates
" Date: 24.09.2010 IMPROVING PROFITABILITY OF IRRIGATED SORGHUM THROUGH PARTIAL IRRIGATION OF LARGER AREAS.. Two main management strategies were used by growers in the 2007/08 season: (1) full irrigation, involving two irrigations, one prior to anthesis, and another at or soon after anthesis, and (2) partial irrigation, usually consisting of a single irrigation of greater than 1 ML/ha, timed to coincide with flowering... The broad objective of this research was to assess different irrigation strategies for irrigated sorghum on the heavy clay soils of the eastern Darling Downs...
Related categories:
Catalogue: GRDC Media
Top of the crop - Coonabarabran presents latest research.. This year's Grains Research and Development Corporation (GRDC) two-day Grains Research Update at Coonabarabran and one-day Updates at Walgett and Nyngan will delve into the topic of soil water efficiency - how to measure and utilise it to make profitable management decisions... GRDC grower services manager, north, Sharon O'Keeffe said northern growers relied heavily on stored soil water sometimes struggle with how best to measure it...
Related categories:

Pages